Sliver coiler



June 14, 1960 D. K. SCOTT 2,940,136

SLIVER COILER Filed March 13, 1959 2 Sheets-Sheet 1 FIG-.2

INVENTOR DALE K SCOTT wwzz. W

ATTORNEY United States Patent 2,940,136 I SLIVER COILER Dale K. Scott, Atlanta, Ga., assignor to Southern States Equipment Corporation, a corporation of Georgia Filed Mar. 13, 1959, Ser. No. 799,217 10 Claims. (Cl. 19-159) This invention relates to sliver coilers and more particularly to sliver coilers in which the tube gear is mounted on low friction means.

The trend toward coilers adapted to use cans of larger and larger diameters results in larger and larger tube gears which due to their greater size and resulting weight are cumbersome and inefiicient in operation if mounted by conventional high friction grooves and associated ribs formed in the tube gear and spectacle.

A principal object of this invention is to provide a sliver coiler in which the tube gear is mounted for rotation on low friction means which interrelates the tube gear and the coiler spectacle.

Another object of the invention is to provide an improved coiler having means for utilizing a large diameter can and which is also etiiciently constructed and operable with a minimum of wasted energy due to friction.

The invention in one form as appliedto asliver coiler having a spectaclecomprises support means in the form of a spectacle ring supported by the spectacle and normally. stationary with respect thereto, a tube gear, and low friction support means interrelating the spectacle ring and the tube gear, the low friction support means being arranged to accommodate relative rotary movement between the tube gear and the spectacle ring and being effective to prevent relative bodily movement therebetween. The spectacle ring may be in the form of a complete separate ring as shown in the drawings or, if desired, may be formed in part of a separate part and in part by a portion of the spectacle itself. Alternatively the ring may be formed entirely in the spectacle without requiring any separate parts.

The invention will be better understood from the following detailed description taken in conjunction with the drawings in which Fig. 1 is a side view of a conventional coiler to which the invention is applicable; Fig. 2 is a plan view taken along the line 2-2 as indicatedon Fig. l and which shows the coiler with its hood removed and with certain portions of the motive mechanism removed from the left-hand portion thereof; Fig. 3 is an exploded perspective view of one of the low friction elements which constitutes an essential feature of the invention; Fig. 4 is a cross-sectional view taken along the center line designated 44 in Fig. 2; and in which Fig. 5 is an enlarged detailed view partially in section of a portion of the structure depicted in Fig. 4 and which shows the relation between the tube gear, the spectacle ring, and the adjustable low friction means which interrelates the tube gear and the spectacle ring in accordance with a feature of the invention.

With reference to Fig. 1, the numeral 1 designates a base structure for a conventional coiler. Mounted on base 1 is a conventional pedestal designated by the numeral 2. Aflixed to the upper end of the pedestal 2 is a coiler head generally designated by the numeral 3. As is well understood in the art, a rotatable platform is mounted on the base 1 and a conventional coiler can 4 is mounted on the rotatable platform and is rotatable therewith. Also, as is well understood in the at, suitable driving mechanism is disposed within the pedestal 2 and within the housing of head 3- and such mechanism cooperates in a well-known manner to impart a desired coiling operation to a sliverfed through the head 3 and into the can 4 where it is accumulated in a predetermined pattern while the can 4 rotates. As can best be seen from amps f Figs. 2 and 4 the head generally designed in Fig. l by the numeral 3 comprises a spectacle 5 which is secured by bolts 6 to the upper flanged end of the pedestal 2. A- hcod 7 is pivotally mounted at 8 to the spectacle 5. Hood 7 is provided with a conventional trumpet 9 through which sliver (not shown) is fed to the calender rolls 10. Calender rolls 10 are mounted on a pair of shafts 11 which are rotatably supported in a pair of bearings 12 and 13 which turn are supported by bracket 14 afiixed by bolts 15 to spectacle 5. Rotary motion is imparted to calender rolls It by a driving pinion 16 secured to the left-hand end of shaft 11 and rotatable therewith. Pinion 16 is rotated by a bevelled pinion 17 affixed to the upper, end of driving shaft 18 which is disposed within the pedestal housing 2 and which is driven by suitable motivating means not shown.

As is well understood in the art, sliver fed through the trumpet 9 is drawn into the coiler head 3 by means of the calender rolls 10 and is. subsequently fed downwardly into the tube 19 which is secured by a pressed fit into the portion 20 formed integral with the tube gear 21. Tube gear 21 is provided about its outer periphery with a plurality of teeth 22 which engage the teeth of driving gear 23 affixed to and rotatable with the drive shaft 18. Thus rotation of shaft 18 imparts rotary motion to tube gear 21 through the driving gear 23 in a fashion similar to conventional practice.

In accordance with this invention, the tube gear 21 is provided with low friction support means which greatly Such improves the efiiciency of operation of the coiler. low friction means as shown in the drawings may constitute a spectacle ring 24 which is provided with an inner peripheral groove 25 and which is alsoprovide with an outer shoulder 26. Shoulder 26 is engaged by the inner periphery of the hood 7 and is thus held in its normal position by this means, hood 7 being held down by fastening means which may comprise a manually rotatable knob 27 which is freely rotatable in an opening provided in the hood 7 and which at its lower end is provided with a threaded portion 28 which engages a corresponding threaded portion of the recess 29 formed in the spectween the hood 7 and the spectacle 5.

While it is deemed preferable to use a ring 25 which is a separate part as shown in the drawings and as described above; it will be understood that the complete ring could be formed integrally with spectacle 5. Alternatively a part of the groove 25 could be formed in a part integral with the spectacle and a part of the groove such as that part above gear 23 could be formed in a separate removable part.

For the purpose of mounting and supporting the tube gear 21 by low friction means .which interrelates the spectacle ring 24 and the tube gear 21 a plurality of low friction elements generally designated in Fig. 2 by the numeral 30 are provided. As is best shown in Fig. 3 the low friction means 30 comprises a mounting bracket 31- provided with a pair of slots 32 and a single aperture 33.-

Disposed for mounting within the aperture 33 is a shaft 34, the lower end of which is secured in position within the opening 33 by means of a suitable pin or set screw 35.

Ball bearing rollers 36 are mounted on shaft'34 and secured thereon by clip 37 Preferably the rollers 36 constitute an exterior tire portion 36A and an interior ball bearing race portion 3613. Furthermore, the rollers 36 are disposed immediately above the enlarged portion 34A of the shaft 34 and the clip 37 is provided with a radial slot 38 which allows the clip to spread apart and to en- For the purpose of securing each mounting bracket 31 to the tube gear '21 in such a manner as to render the low I V I Radial adjustment'of each mounting bracket 3-1 is eifected' by; radiallydisposedadjusting bolts 41 which threadedly engage the upstanding tab 213 formed in the enlarged portion ZiA of tube gear 21. The adjusting bolts 41 are locked in position by suitable lock nuts 42. For the purpose of enclosing each of the low friction elements a f housing structure 43 is secured by a screw 44 to each of the shafts 34'.

Frontthe description thus far it will he understood that the tube gear 21 is rotated in more or less conventional fashion by shaft 18 operating through the driving gear 23 and that the tube gear 21 and parts associated therewith are supported by' the'loW friction elements 39 riding in the groove 25 of the spectacle ring 24. Furthermore, it

said low friction means being arranged tofacilitate relative rotary movement between said gear and ring and being eifective normally to prevent relative bodily movement therebetween, and a hoodielement releasably engageable with a part of said ring and preventing relative bodily movement between sat gear. and'said spectacle when secured in position relat e s aid spectacle "5. 'A s1iver cotter comprising support are-ans defining an inner circular groove, a tube gear, a d a plurality of rollers mounted fon said tubefge'ar' runny disposed to ride in said greets, said rollers'being adjustable radially relative to said tube gear, said rollers; and: said groove normally preventing substantial relatijverbodily movement in any direction between said tube gear and said support means. a 7 7 2,

6. A sliver coiler comprising a spectacle, a spectacle ring mounted on said; spectacle and having an inner. pe-

ripheral' groove, a tube gear, and a plurality ofrrollers adjustably mount'edponsaid tube gear QIICiiillSPOSfidIO lid between said ring. and said gear and said tube gem'bein g will be understood that all of these elements, including tube gearZI and the spectacle ring Z4,are securely heldin position by the hood' 7' when the knob 27 is in its fa'sten'ed'position as shown in Fig; 4. p a In order to remove the tube gear21. the knob 27 is onset wed and the hood 7 opened. Thereafter the tube gear,

21 andi the spectacle ring' 24 and parts associated therewith are removable as a unit in a fashion somewhat simi In to the manner in which conventional tube gears may be removed.

7 Ifthe ring 24 is formed integral with spectacle 5 either 7 in whole or in part, the tube. gear could belifte'd out of the spectacle after the low friction elements 30 are removed or adjusted radially inward so as to retract the rollers 36 from groove 25.

' While I- have shown and described particular embodimerits of the invention I do not wish to be limited thereto and intend in the appended claims to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Patent of theUnited States-is:

.1. A silver coiler comprising a spectacle, aspectacle in'said'groove, said rollers and groovenornrally preventing substantial relative bodily movementin any. direct-ion bodilymovable relativeto said spectacle ring only "upon:

inward radial adjustment or removal of'sa'id rollers;

7. A sliver coiler comprising a'tubegear, a plurality of V mounting brackets disposed about-the periphery for said tube gear, radially adjustable holding-means" for securing said brackets to .saidtubegear', aplurality of rollers-respectively' mounted on said brackets, and support rneans having a circular groovefor-feceiving said rolle'rsg'said;

rollers being normally adjusted relative to said; ge'a'rfand support means so as to accommodate rel-ativerotary movement but preventing substantial bodily mov merit therebetween. V V f V Y 8. A sliver coiler comprising'atube gear, a'pl-uralityof mounting brackets disposed about the periphery of said;

tube gear, radiallyadju'stable holding means for securing saidbrackets to said tube gear, a plurality of rollers respectively mounted on said brackets, and a specta'cl e ringv having a peripheralgroove for receiving saidrollers; said rollers being" normally adjusted relative to'said gear and ring so as to accommodate relative rotary movement but preventing substantial bodily movement tl'lere between ring supported by said spectacle and-normally stationary I withfrespe'ct thereto, a tube gear, and-low friction supportimeansinterrelating said spectacle ring and said tube, 7 gear and forming a unitary bodily removable assembly said gear being movablysupportedpby said ring.

2. A sliver coil'erheadcomprising a spectacle,"aj spec tacle ring supported byfsaid spectacle and normally staitionary with respect thereto; a tube'gear, low frictiodsupport means interrelating said spectacle ring and said'tube "gear, said lowfiiction' meansbeing arranged to facilitate relative rotary' movement between said gear andrin'g" and being'efiective normally to prevent relative bodily movement 'therebetween', a hoodforrning a cover for said head; and. fastening means' 'for holding said hood in a'normal with'respect thereto, a tube gear, low friction support means-"interrelatingsnid spectacle ring'and said tube gean;

said'gear; having a peripheral toot-hedportien, and a driving; gear engageable withsaid peripheral toothed portion 7 of gearand spaced sornew'lm-t'Tfron'rsaid ring for'imr rotary motion totsa'id gear;

A sliver'coilerxcomprising a spectacle, a spectacle ringsupported bysaid-spectacle and nonnallysta-tionary: withrespe'ct thereto, a tube gear, lowfriction support means interrelating sa-idspectacle ring and said tube gear,

3. A sliver coil'er comprisingaspectacle, a spectacle ring. supportedby saidspectacteand normally stationary i 9. A sliver coile'r'comprisi'nga rotatablectube gear having a peripheralftoo thed portion, a'plura'lity of mounting" brackets disposed about the'periphcry of saidrtube gear, each of said brackets having a shaft mounted'tlier '11 sub stantially'parallel' tothe axis of rotation ofjsai tube gear,

radially adjustable holdingmeans" for secujmg s d brackets" to said tube'gearf a plu ality of rollers r'specti el'v,

mounted on. said shafts," support meansjdefin'ing' a groove' 'for receiving saidj rollers', said rollers inally adjusted relative. to sai f seargand to said sup'port mean's solas to. accommodate' relative ruta ymnvetnent 55' but preventin'g'substantial'bodily rriovemen fli elseween;

and a driving 'gear normally in engagem pertussis 7 toothed portion of said tube gear" for: imparting, rotary" motion thereto. I j .v j

1 0.1 A sliver coil'ericofiiprising at'ube gear havingaipe riplieral toothed portion, a pluralitypr men jng; brackets disposedabout the periphery ofsaid' tube gear, radially adjus "ble holding means for securing@smdibracketslto.

said tube gean' pluralityof rollersrespectively mbiintedi on said brackets; a;spectacle? ring ha ving 'a -perip'he'ral groove! for, receiving" said rofl'e'rs,z said ro" being normallyfadjustedrelativetosaid'gear andring. so'as toIac commod'a'te. relative rotary movement preventing sub;'.. stantial bodily movement hesaurus s, and a driving" gear: in engagementlwifthfsaid toothed 'PQi onof? saidftubegear for impartingrotary motion thereto.

" References Cit edtinithe' file: of-tl'iis patent dur'rao sfrnrns "PATENTS j 

